CN214468808U

CN214468808U - Strong fire stove

Info

Publication number: CN214468808U
Application number: CN202120479769.1U
Authority: CN
Inventors: 杜一鸣
Original assignee: Shanghai Hesen Electro Machinery Co ltd
Current assignee: Shanghai Hesen Electro Machinery Co ltd
Priority date: 2021-03-05
Filing date: 2021-03-05
Publication date: 2021-10-22
Anticipated expiration: 2031-03-05

Abstract

The utility model relates to a vigorous fire kitchen, including fire plate (1) and a plurality of fire door (2) that evenly set up in fire plate (1), fire door (2) communicate gas distributing pipe (5), be equipped with nozzle (4) and secondary air in proper order between gas distributing pipe (5) and fire door (2) and draw and penetrate pipe (3). Compared with the prior art, the utility model has the advantages of the thermal efficiency is high, safe in utilization etc.

Description

Strong fire stove

Technical Field

The utility model relates to a cooking utensils technical field, concretely relates to vigorous fire kitchen.

Background

Currently in the catering market, many small restaurants or large gear use liquefied gas as cooking fuel. In order to obtain the fire power required for cooking Chinese food, a strong fire range is mostly used. The fire stove achieves the effect of fire by increasing the gas pressure. The pressure used is generally between 10 and 25 kpa. Such a hot fire is extremely dangerous and an explosion event of improper use of liquefied gas often occurs because both the pressure reducing valve and the gas delivery pipe do not meet the standards. According to the potential safety hazard, the gas pressure used in the prior strong fire stove is reduced to the safe pressure (3kpa) from the medium-high pressure, the strong fire stove is not suitable for the strong fire cooking firepower of Chinese food, and after the combustion pressure is reduced, the injection capacity of the atmospheric burner is reduced, so that the power is reduced, and the smoke and the heat efficiency are reduced.

The utility model patent CN203671666U discloses a high-efficient strong fire kitchen of gas, it includes the furnace body of taking the panel, and install at the inside furnace end of furnace body, divide the fire lid, the gas furnace frame, first air mixing cavity and the second air mixing cavity of furnace end upper end are equipped with, be equipped with first air channel between two air mixing cavities, the second air mixing cavity middle part is equipped with the second air channel, it is first, the second air channel link up through the periphery of a plurality of intake ducts with the furnace end, first air mixing cavity and second air mixing cavity draw the pipe intercommunication with first ejector pipe and second respectively, first air mixing cavity and first ejector pipe still are equipped with the premix chamber. The beneficial effects of the utility model are that the furnace end is provided with the twice fume hood and mixes the gas chamber oxygen suppliment to first, second, is favorable to air and gas intensive mixing, makes flame highly even, and the burning is stable, the lifting thermal efficiency. However, the high-fire stove is a household gas stove, the maximum power of the high-fire stove is 5.2kW, and the air quantity required under the high-power condition cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a vigorous fire kitchen can use under the safe pressure, and power is high, and the thermal efficiency is high.

The purpose of the utility model can be realized through the following technical scheme: the utility model provides a fierce fire kitchen, includes stove plate and a plurality of fire mouths of evenly setting in the stove plate, fire mouth intercommunication gas distributing pipe, be equipped with nozzle and secondary air in proper order between gas distributing pipe and fire mouth and draw and penetrate the pipe.

Further, the nozzle include gas volume shrink chamber, gas jet orifice, gas mixing chamber and the export of the gas-air mixture that links to each other in proper order, the gas mixing chamber lateral wall be equipped with air inlet. The gas passes through the gas volume shrinkage cavity, makes the gas velocity of flow accelerate to reinforcing draws the penetrating ability, and the gas jets out to the gas mixing chamber through the gas jet, and outside air is jetted into the gas mixing chamber that is located nozzle upper portion by the air inlet, accomplishes primary air and draws and penetrate, and the air-fuel gas that accomplishes the back in the gas mixing chamber and once mixes continues to get into secondary air through the export of primary gas air mixture and draws the ejector pipe, makes air-fuel gas reach the air coefficient about 0.9.

Furthermore, the gas volume contraction cavity is of a conical structure, and the side of the gas mixing cavity, which is connected with the gas jet orifice, is also of a conical structure.

The conical vertex angle of the gas volume contraction cavity is smaller than that of the gas mixing cavity. Preferably, the conical vertex angle of the gas volume contraction cavity is 60 degrees, and the conical vertex angle of the gas mixing cavity is 120 degrees.

The secondary air injection pipe comprises a premixing cavity, and a secondary air injection hole is formed in the side wall of the secondary air injection pipe.

Furthermore, the secondary air injection hole is formed below the premixing cavity, and an anti-fouling cap is arranged above the secondary air injection hole. The dirt-proof cap can prevent the cooking dirt from falling into the air injection hole to cause combustion failure.

The fire hole comprises a plurality of small-hole fire holes which are densely distributed in a honeycomb shape, and a pressure stabilizing cavity is arranged below the fire hole. The air-fuel gas after twice premixing enters the pressure stabilizing cavity, so that the air-fuel gas can form stable and uniform pressure in front of the fire hole, the air-fuel gas uniformly flows into the fire hole from the pressure stabilizing cavity, the gas flow rate is high, but the flow of each small-hole fire hole is very small, so that the flame is supplemented by secondary air in a short time to form stable combustion flame.

Furthermore, a fire hole fixing seat is arranged on the outer side of the fire hole.

The gas distribution pipe comprises an outer ring pipe and an inner ring pipe, the outer ring pipe is connected with a fire hole positioned on the outer ring, the inner ring pipe is connected with a fire hole positioned on the inner ring, an outer ring air inlet is formed in the outer ring pipe, and an inner ring air inlet is formed in the inner ring pipe. The gas enters the outer ring pipe and the inner ring pipe of the gas distribution pipe through the double-channel gas valve respectively, and the double-channel gas valve is mainly used for realizing coarse adjustment of firepower of the inner ring and the outer ring when a strong fire stove works, the outer ring is flamed out to be low firepower, and the inner ring and the outer ring are simultaneously combusted to be high firepower.

The side wall of the furnace plate is provided with a plurality of windows, and the bottom of the furnace plate is symmetrically provided with high supporting legs. The plurality of windows can ensure the flow of secondary air, and the arrangement of high supporting feet can make the use of users more convenient.

The fierce fire stove can also be provided with an electronic ignition device and a flameout protection device. By adopting the electronic ignition and safe flame detection technology, the gas detonation can be avoided, and the safety of a strong fire stove is further improved by using the flame-out protection device.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model improves the power of each combustion unit under the condition of safe use pressure through the matching arrangement of the nozzle, the secondary air injection pipe and the fire hole;

2. the honeycomb fire hole of the utility model can keep the carbon monoxide in the flue gas at a lower level under the condition of large heat load, the heat load keeps the power and firepower of the original strong fire stove, the normal combustion is ensured under the condition of small heat load, and the tempering phenomenon does not occur;

3. the utility model ensures that the gas flow velocity is faster but the flow of each small-hole fire hole is very small through the matching arrangement of the pressure stabilizing cavity and the honeycomb type fire hole, so that the flame is short and forms stable combustion flame after being supplemented by secondary air;

4. the utility model arranges the anti-pollution cap above the secondary air injection hole, which can prevent the cooking dirt from falling into the air injection hole to cause the combustion failure;

5. the utility model arranges a plurality of windows on the side wall of the furnace plate, which effectively meets the demand of secondary air and improves the combustion efficiency;

6. the utility model improves the use convenience by the design of the high supporting feet at the bottom of the furnace plate;

7. the utility model discloses accessible electronic ignition and flame-out protection device's setting avoids gas deflagration, improves the security.

Drawings

FIG. 1 is a schematic view of the overall structure of a strong fire range of the present invention;

FIG. 2 is a schematic view of the nozzle structure of the strong fire range of the present invention;

FIG. 3 is a schematic structural view of a fire hole of the high fire range of the present invention;

FIG. 4 is a cross-sectional view of the fire hole and the secondary air injection pipe of the strong fire stove of the present invention;

in the figure: 1-furnace plate, 2-fire hole, 21-small hole fire hole, 22-fire hole fixing seat, 3-secondary air injection pipe, 31-premixing cavity, 4-nozzle, 41-gas volume shrinkage cavity, 42-gas injection hole, 43-air inlet, 44-primary gas and air mixed gas outlet, 45-gas mixing cavity, 5-gas distribution pipe, 6-antifouling cap, 7-outer ring air inlet, 8-inner ring air inlet, 9-secondary air injection hole, 10-pressure stabilizing cavity and 11-high supporting leg.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The following examples are carried out on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the following examples.

Example 1

A high fire stove is shown in figure 1 and comprises a stove plate 1, a fire hole 2, a secondary air injection pipe 3, a nozzle 4, a fuel gas distribution pipe 5, an anti-pollution cap 6, an outer ring air inlet 7, an inner ring air inlet 8, a secondary air injection hole 9, a pressure stabilizing cavity 10 and high supporting legs 11.

A plurality of bocks 2 evenly set up in 1 bottom of stove dish, still are equipped with gas distributing pipe 5 below bock 2, are equipped with nozzle 4, secondary air in proper order between gas distributing pipe 5 and bock 2 and draw and penetrate pipe 3 and voltage-stabilizing cavity 10, and gas distributing pipe 5 includes outer circle pipe and inner circle pipe, and outer circle union coupling is located the bock 2 of outer lane, and inner circle union coupling is located the bock 2 of inner circle, is equipped with outer lane air inlet 7 on the outer circle pipe, is equipped with inner circle air inlet 8 on the inner circle pipe. The inner and outer rings of the gas distribution pipe are designed to realize coarse adjustment of firepower of the inner and outer rings when the strong fire stove works, the outer ring is flameout to be low firepower, and the inner and outer rings are simultaneously combusted to be high firepower. Be equipped with in the secondary air draws and penetrates pipe 3 and mix chamber 31 in advance, be equipped with secondary air on the lateral wall of mixing chamber 31 below and draw hole 9 in advance, and be equipped with anti-fouling cap 6 above secondary air draws hole 9, prevent that the sewage water clock in the culinary art from disturbing the normal burning of combustion unit. The side wall of the furnace plate 1 is provided with a plurality of windows for air circulation, and the bottom of the furnace plate 1 is also symmetrically provided with high supporting legs 11. The vigorous fire stove is also provided with an electronic ignition device and a flameout protection device.

The specific structure of the nozzle 4 is shown in fig. 2, and comprises a gas volume contraction cavity 41, a gas jet orifice 42, a gas mixing cavity 45 and a primary gas-air mixed gas outlet 44 which are connected in sequence, and an air inlet 43 is arranged on the side wall of the gas mixing cavity 45. The gas volume contraction cavity 41 is in a 60-degree conical structure, and the gas mixing cavity 45 is in a 120-degree conical structure at the side connected with the gas injection port 42. The gas passes through the gas volume contraction cavity 41, so that the gas flow rate is accelerated, the injection capacity is enhanced, the gas is injected into the gas mixing cavity 45 through the gas injection port 42, the external air is injected into the gas mixing cavity 45 positioned at the upper part of the nozzle through the air inlet 43, the primary air injection is completed, the air-fuel gas after primary premixing is completed in the gas mixing cavity 45 continuously enters the secondary air injection pipe 3 through the primary gas-air mixed gas outlet 44, and the air-fuel gas reaches the air coefficient of about 0.9.

The specific structure of the fire hole 2 is shown in fig. 3-4, the fire hole 2 comprises a plurality of small-hole fire holes 21 which are distributed in a honeycomb-shaped dense mode, a fire hole fixing seat 22 is arranged on the outer side of the fire hole 2, a pressure stabilizing cavity 10 is further arranged below the fire hole 2, air-fuel gas subjected to twice premixing enters the pressure stabilizing cavity 10, stable and uniform pressure can be formed in front of the fire hole 2 by the air-fuel gas, the air-fuel gas uniformly flows into the fire hole 2 from the pressure stabilizing cavity 10, the gas flow rate is high, but the flow of each small-hole fire hole 21 is small, so that stable combustion flame is formed after the flame is supplemented by secondary air in a short time.

The working pressure of the vigorous fire stove is 2800-3200 Pa, the maximum power can reach 22.6kW, the discharge amount of carbon monoxide after conversion is lower than 100ppm, the noise is less than 52db, and the efficiency can reach 49.2%.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.

Claims

1. The utility model provides a fierce fire kitchen, its characterized in that includes fire plate (1) and a plurality of fire door (2) of evenly setting in fire plate (1), fire door (2) intercommunication gas distributing pipe (5), be equipped with nozzle (4) and secondary air in proper order between gas distributing pipe (5) and fire door (2) and draw and penetrate pipe (3).

2. A high-fire stove as claimed in claim 1 characterized in that said nozzle (4) comprises a gas volume contraction chamber (41), a gas jet (42), a gas mixing chamber (45) and a primary gas and air mixed gas outlet (44) connected in sequence, and the side wall of said gas mixing chamber (45) is provided with an air inlet (43).

3. A high-fire stove as claimed in claim 2 characterized in that the gas volume contraction chamber (41) is conical and the gas mixing chamber (45) is conical on the side connected to the gas injection port (42).

4. A high-fire stove as claimed in claim 3 characterized in that the cone apex angle of the gas volume reducing chamber (41) is smaller than the cone apex angle of the gas mixing chamber (45).

5. A high-fire stove according to claim 1 characterized in that said secondary air injection duct (3) comprises a premixing chamber (31) provided with secondary air injection holes (9) in the side wall of the secondary air injection duct (3).

6. A high-fire stove according to claim 5 characterized in that the secondary air injection holes (9) are provided below the premixing chamber (31) and a dirt-proof cap (6) is provided above the secondary air injection holes (9).

7. A high-fire stove as defined in claim 1 characterized in that said fire hole (2) comprises a plurality of small-hole fire holes (21) densely distributed in honeycomb shape, and a pressure stabilizing cavity (10) is provided under the fire hole (2).

8. A high fire stove according to claim 7 characterized in that the fire hole fixing seats (22) are arranged on the outer side of the fire hole (2).

9. A high-fire stove as defined in claim 1 characterized in that said gas distribution pipes (5) comprise an outer ring pipe and an inner ring pipe, said outer ring pipe is connected to the fire hole (2) located in the outer ring, said inner ring pipe is connected to the fire hole (2) located in the inner ring, the outer ring pipe is provided with an outer ring gas inlet (7), and the inner ring pipe is provided with an inner ring gas inlet (8).

10. A high fire stove as claimed in claim 1 characterized in that the side wall of the stove plate (1) is provided with a plurality of windows, and the bottom of the stove plate (1) is symmetrically provided with high supporting feet (11).